MCQ
In succession, complexities in structure are:
- ADrastically increasing
- BSlowly increasing
- CNot increasing but decreasing
- DConstant
Explanation:
Ecological succession is the gradual process by which ecosystems change and develop over time.
With the habitats, constantly changing, succession is of two types- primary and secondary.
Succession develops through increasing complexity until it becomes stable or self-perpetuating as a climax community where the ecosystem is balanced and there is less risk of any interfering event or change to the environment.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$R -$ A typical angiosperm embryo sac, at maturity,though $8$-nucleate is $7$-celled
$I.$ People should get vaccination to avoid infection
$II.$ Vaccination is available against polio, cholera, typhoid, tuberculosis and many othe disease
$III.$ Eradication of vectors are necessary in diseases like malaria and filariasis
$IV. $ Dengue and chikengunya, both are spread by Culex mosquitoes
Which of the statements given above are correct?